The State’s Attorney is looking into allegations that maintenance workers at Baltimore public housing complexes demanded sexual favors before repairs could be completed.

The case started with a federal lawsuit filed by seven public housing residents at Sandtown-Winchester’s Gilmor Homes — where Freddie Gray was arrested — and Westport that brought the sextortion allegations, WBAL reports. On Tuesday, four new plaintiffs joined the case, including a woman who said she was denied heat for two winters because she refused to have sex with the maintenance man.

The woman also said that higher-ups at the Housing Authority of Baltimore City knew about the complaints. The additional allegations also reported harassment at Govans Manor, where a woman said an employee said he would “Do a Bill Cosby on her,” the lawsuit states.

Marilyn Mosby’s office said it is investigating for potential criminal charges. Tenants and protesters who marched into City Hall earlier this week called for housing commissioner Paul Graziano to be fired, but Mayor Stephanie Rawlings-Blake defended his handling on Wednesday.

The allegations are ratcheting up in a week when residents at Lakeview Towers were left without heat and water for two days. Disabled residents who had to check in to hotels returned on Wednesday.